Glow plug relay

triker62 · 12th August 2012, 15:25

Just got my first Rover 75 its a 02 rg 2ltr diesel estate
it has a problem starting when cold just takes a while to start
is better when warm was told it is the glow plug relay could anyone
tell me where it is and how easy to change,
When I can find it will try giving a clean before I buy another
Thanks for any help

suffolk boy · 12th August 2012, 15:33

my car has never been preheated using the glow plugs in four years.this includes going down to minus 13 degrees.the probelm is most likely fuel pumps or a sensor cam or crank cannot remember which

triker62 · 12th August 2012, 15:38

Thanks but was told it had been plugged in and came up with glow plug relay
don't really want to pay to have tested again unless I have to

mamasboy · 12th August 2012, 15:48

Suffolk boy is right, won't be glow plug relay.

suffolk boy · 12th August 2012, 15:49

its a red herring a lot of cars show this fault including mine and there is nothing wrong with it.put some injector cleaner in it for a start forte if you can get or morris one shot

triker62 · 12th August 2012, 15:58

cheers will try it but where is the relay located and where are the sensors thanks

suffolk boy · 12th August 2012, 16:29

glow plug relay is nxt to the ecu in the plenum chamber.camsensor is nxt to the oil filler under the engine cover

Mike Noc · 12th August 2012, 16:31

The glow plug relay is a combined ECU and relay which sits with the engine ECU in the plenum chamber.

As mentioned the engine will happily start without the glow plugs in our temperate climate, but if the glowplug relay/ECU gets water damaged then that can cause problems.

There are no sensors involved just 4 glowplugs, one for each cylinder.

Mike

suffolk boy · 12th August 2012, 16:34

Quote:

Originally Posted by Mike Noc

The glow plug relay is a combined ECU and relay which sits with the engine ECU in the plenum chamber.

As mentioned the engine will happily start without the glow plugs in our temperate climate, but if the glowplug relay/ECU gets water damaged then that can cause problems.

There are no sensors involved just 4 glowplugs, one for each cylinder.

Mike

i am expecting the question where is the plenum followed by its full of water

triker62 · 12th August 2012, 16:46

thanks looked through loads on the site and now know where the plenum chamber is think I need to get a book (dont get all this on trikes lol ) thanks for all the help will start on it in the morning

12th August 2012, 15:25	#1
triker62 Regular poster Rover 75 Tourer Join Date: Aug 2012 Location: Newquay Posts: 43 Thanks: 0 Thanked 0 Times in 0 Posts	Glow plug relay Just got my first Rover 75 its a 02 rg 2ltr diesel estate it has a problem starting when cold just takes a while to start is better when warm was told it is the glow plug relay could anyone tell me where it is and how easy to change, When I can find it will try giving a clean before I buy another Thanks for any help

12th August 2012, 15:33	#2
suffolk boy This is my second home fiat panda Join Date: Sep 2009 Location: haverhill Posts: 6,720 Thanks: 96 Thanked 586 Times in 526 Posts	my car has never been preheated using the glow plugs in four years.this includes going down to minus 13 degrees.the probelm is most likely fuel pumps or a sensor cam or crank cannot remember which __________________ fiat panda 1.2 eco

12th August 2012, 15:48	#4
mamasboy RS South East Ford fester... blah.... Join Date: Mar 2010 Location: Hastings Posts: 2,900 Thanks: 29 Thanked 78 Times in 42 Posts	Suffolk boy is right, won't be glow plug relay. __________________ the name's Bernard but you can call me nursie......

12th August 2012, 15:49	#5
suffolk boy This is my second home fiat panda Join Date: Sep 2009 Location: haverhill Posts: 6,720 Thanks: 96 Thanked 586 Times in 526 Posts	its a red herring a lot of cars show this fault including mine and there is nothing wrong with it.put some injector cleaner in it for a start forte if you can get or morris one shot __________________ fiat panda 1.2 eco

12th August 2012, 16:29	#7
suffolk boy This is my second home fiat panda Join Date: Sep 2009 Location: haverhill Posts: 6,720 Thanks: 96 Thanked 586 Times in 526 Posts	glow plug relay is nxt to the ecu in the plenum chamber.camsensor is nxt to the oil filler under the engine cover __________________ fiat panda 1.2 eco

12th August 2012, 15:38	#3
triker62 Regular poster Rover 75 Tourer Join Date: Aug 2012 Location: Newquay Posts: 43 Thanks: 0 Thanked 0 Times in 0 Posts	Thanks but was told it had been plugged in and came up with glow plug relay don't really want to pay to have tested again unless I have to

12th August 2012, 15:58	#6
triker62 Regular poster Rover 75 Tourer Join Date: Aug 2012 Location: Newquay Posts: 43 Thanks: 0 Thanked 0 Times in 0 Posts	cheers will try it but where is the relay located and where are the sensors thanks

12th August 2012, 16:31	#8
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	The glow plug relay is a combined ECU and relay which sits with the engine ECU in the plenum chamber. As mentioned the engine will happily start without the glow plugs in our temperate climate, but if the glowplug relay/ECU gets water damaged then that can cause problems. There are no sensors involved just 4 glowplugs, one for each cylinder. Mike

12th August 2012, 16:46	#10
triker62 Regular poster Rover 75 Tourer Join Date: Aug 2012 Location: Newquay Posts: 43 Thanks: 0 Thanked 0 Times in 0 Posts	thanks looked through loads on the site and now know where the plenum chamber is think I need to get a book (dont get all this on trikes lol ) thanks for all the help will start on it in the morning